Hat-block.



P. B. VANDERHOEF.

HAT BLOOK.

APPLICATION nun JUNE 25, 1912.

Patented Apr. 15, 1913.

71 $35 Meg gag FRANCISiBAILEY VANDERI-IOEF, OF NEW YORK, N. Y;

HAT-BLOCK.

Specification of Letters Patent.

Application filed June 25, 1912. Serial No. 705,749.

To all whom it may concern:

Be it known that I, FRANCIS BAILEY VAN- DERHOEF, citizen, of the; United States of America, residing at New York city, in the county and State of New York, have invented certain new u anduseful Improvements in Hat-Blocks, of which the following is a specification.

My invention relates to a hat block par,

tieularly adapted for use injmaking straw hats.

One of the chief objects of the invention,

is to provide a block on whicha straw hat may be made in suchmanner that the sides of the hat will be truly vertical and straight.

Another object is to provide a. block on which a hat may be made with a sharp edge at the corner or line of junction of the sides with the top.

Another object is to provide an integral or one piece block of such nature and construction that a hat, may be made thereon with vertical sides and a sharp edge at the top and be readilyremoved from the hat as a single piece after the hat has been so made thereon.

The block in its preferred form consists of a frustum of a cone substantially elliptical in plan with a peripheral flange project ing laterally at the small or top end, the flange having its lowersurface inclined and being of an outside diameter and shape substantially equal to the corresponding diam eter and shape of the base of the frustum and directly overlyingthe latter.

The block is preferably made of metal and aluminum is preferred.

In the accompanying sho-wna hat block constructed in accordance withthe preferred form of my invention.

Figure 1 is an elevation. Fig. 2 is a top plan.x Fig. 3 1s a fragmentary, vertical section taken on anyradius as the line y-y of Fig. 2.

The block which is preferably integral, 2'. 'e., formed :in a single piece, consists of a body portion 1 inthe form of a frustum of a cone. This is usually elliptical in plan but may be otherwise shaped to conform to the head. The cone is closed at the top or small end 2, thetop surface being concave at 3 and having its inclination greatest adjacent the edge at has shown. Encircling the conical frustum at the top or small end and projecting laterallytherefrom, is a peripheral or annular-flange 5. Preferably drawing I u have i this flange, as shown, has its bottom face Patented Apr; 15,1911a inclined, forming a conical zone 6 oppo sitely disposed to the frustum 1, the outside diameter of the flange being, equal at all points to the corresponding diameter 'of the baseof the frustum and directly overlying it, as indicated by the dotted line w m (if Fig. 1.,

The top surface is centrally concave at 3,

has a flat-face 7 encirclingits periphery,' and the outer face of the flange 5 above the conical zone 6 18 straight and vertical, as

indicated M8, the faces 7 and 8 beingprefi erablyatright angles and meeting ina vertex ,9 which encircles the periphery of the flange.

While the edge surfaces 7 and. 8

are at right angles, the respectively adj acent. surfaces 4 and 6 are at an acute angle as i seen in Fig. 3, and the block is preferably; hollow.

In the. operation of my invention, a hat. body is first assembled in the usual manner by sewingor weaving as nearly as possible in the desired form, and with the 'sides as nearly vertical as possible. The hat is then placed over the block and shaped thereto by pressing with hot irons. The top corner is drawn or broken over the vertex 9 of the.

flange 5, and pressed to. conform to surfaces 7 and ,8, thus forming a sharp edge along theline 0f junctlon of the sides with they crown. The sides are pressed in to the sur: face of the conical frustum during the 1roning operation, but thereafter will spring;

back straight and to a true vertical as. in-

dicated by the dotted line w w of Fig.1.. The

block may then be readily removed.

In the manufacture of straw hats itis found desirable to provide the top of the block with a flange because a sharp edge or corner at the top of the hat can be better secured by this means. But, if the sides offl the block? are vertical and of the same di-i ameterat the top as at the bottom which has been the case heretofore, the outside di-l ameter of the flange will be greater than the diameter of the bottom of the block. There-y fore, the hat will have a greater diameter at the top than at the bottom, the sides will not bestraight and vertical and the block, cannot ber'emoved except it be made in and removed bysections or pieces.

This invention obviates the difficulties sug-; gested and accomplishes the results desired by providing an integral or one piece block. with a top flange and a conical body such acoii'e with'a laterally-projectingperipheral flarigefat the top orsmall end" of the frusoff a coiriej with' a,laterally-projecting;- pe ripher'al ,fla nge at the top or small end of and the block may be made in and removed I have thus described in specific terms a that the outer surface of the -flangeand'the bottom of the block are in the same vertical plane; By this means a hat may be made with a sharp top edge and verticalsides as a single piece, all'of which are important objects in the art "of manufacturing. straw hats.

Vvlia't I'claim is: l 1. A- hat block formed of a frustum of 2. Ajhat' block in the form of a frustum the'f fustum, the flangeb eing of aldiameter at allpoints equal to the corresponding di-' ameter of the base of the cone, the flange be ing a'lsofiof' the'same'shape as-the bas'e and' overlyingthe same. 7 i p A hat-block-in the form ofg frustum of a cone with a peripheral flange at thesmall end of thefrustum; the top surface I of the frustumbeing-concave;

4. A hat block in, the form-of a cent the edge. 1

5. A hat block of varying,cross'asection; 40" A ame'ters' in'two planes at right anglestothe axis ofthe' block are equal; one of said planes being. adjacent tothe top of the bloclrand the other adjacent to the bottom thereof, the inte'rveningperiphery of the blockbeingfof' less diameter adjacent to the top of the'BQ block and'tapering then toward the base of theblock. K Signed by me at NewiYorkfc'ity, county m BAILEY vlnnnnnorn VVitnei-zses: V i

CHARLES f D; Enwnnns', I fl nonnn'on ATEN' Ivns.

Gfcpi esof-this'p atent may be obtained for five cents each, by addressing the Commissioner of Eat ents.

7 frustum *0f a cone with a peripheral, fla'ngefat they. small end of the frustum, theifiangehaving 35 its bottom'face inclined, the top surfaceiof' the frustum being concave, the inclination ,fo-f the concave surface being greatestadja and State of New York-,' this 8th dayof May; i 

